Porous carbon adsorbent from cellulose acetate for efficient Hg0 adsorption from coal-fired flue gas.

IF 5.8 3区 环境科学与生态学 0 ENVIRONMENTAL SCIENCES Environmental Science and Pollution Research Pub Date : 2025-02-15 DOI:10.1007/s11356-025-35989-1
Xiaoyuan Qiu, Yunyi Ge, Xiao Zhang, Boxiong Shen
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引用次数: 0

Abstract

The elemental mercury emitted from coal flue gas has caused serious harm to the ecological environment, and the development of high efficiency Hg0 adsorbents has been a research hotspot. In this study, cellulose acetate derived carbon adsorbent was prepared by the combination of soft template and activation method, which realized the efficient removal of Hg0 from coal flue gas. The mechanism of adsorption process was studied by FTIR, Hg-TPD and kinetic simulation. The results show that the soft template agent mainly constructed mesopores in the adsorbent, and the activator mainly constructed micropores. The synergistic effect of the two significantly enhanced the physical adsorption of Hg0 by the adsorbent. In addition, cellulose acetate with high O/C (0.93) was used as a carbon source to promote the formation of a large number of C = O functional groups on the surface of the adsorbent, which is the main chemisorption site of Hg0. The adsorbent has a high mercury adsorption capacity, reached 3,800 μg/g.

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来源期刊
CiteScore
8.70
自引率
17.20%
发文量
6549
审稿时长
3.8 months
期刊介绍: Environmental Science and Pollution Research (ESPR) serves the international community in all areas of Environmental Science and related subjects with emphasis on chemical compounds. This includes: - Terrestrial Biology and Ecology - Aquatic Biology and Ecology - Atmospheric Chemistry - Environmental Microbiology/Biobased Energy Sources - Phytoremediation and Ecosystem Restoration - Environmental Analyses and Monitoring - Assessment of Risks and Interactions of Pollutants in the Environment - Conservation Biology and Sustainable Agriculture - Impact of Chemicals/Pollutants on Human and Animal Health It reports from a broad interdisciplinary outlook.
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